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<div class="title">AVLTree.h</div>  </div>
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<a href="_a_v_l_tree_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="preprocessor">#ifndef ag_avltree_avl_tree_h</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define ag_avltree_avl_tree_h</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="preprocessor">#include &lt;map&gt;</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="preprocessor">#include &lt;iostream&gt;</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="preprocessor">#include &lt;fstream&gt;</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="preprocessor">#include &lt;sstream&gt;</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="preprocessor">#include &lt;algorithm&gt;</span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="preprocessor">#include &lt;exception&gt;</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;</div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;</div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Key, <span class="keyword">typename</span> Val&gt;</div>
<div class="line"><a name="l00014"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html">   14</a></span>&#160;<span class="keyword">class </span><a class="code" href="class_a_v_l_tree.html">AVLTree</a> {</div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;</div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;    <span class="comment">//AVL Node</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"><a class="code" href="struct_a_v_l_tree_1_1_avl_node.html">   23</a></span>&#160;<span class="comment"></span>    <span class="keyword">struct </span><a class="code" href="struct_a_v_l_tree_1_1_avl_node.html">AvlNode</a> {</div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;</div>
<div class="line"><a name="l00025"></a><span class="lineno"><a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#a8d82f8734a1867fdd307d17bae520753">   25</a></span>&#160;        <a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#a8d82f8734a1867fdd307d17bae520753">AvlNode</a>(<span class="keyword">const</span> Key&amp; <a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#a8ccccd23a25c7d19f047fb6b4b3996e1">key</a>, <span class="keyword">const</span> Val&amp; <a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#a3d9c7193289f68ecdcf10b26a8425604">val</a>) :</div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;        <a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#aa32ff2255f3db16a2f0c03012eadb016">parent_node</a>(0), <a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#afa4752099eb52d45aa05b456c2d25699">left_node</a>(0), <a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#a5db3b38b6d5f266624ff6230cfe01811">right_node</a>(0), <a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#a60c8ca95cc50be08a63cff7ec0eba3e7">left_max_depth</a>(0),</div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;        <a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#a1a086087b0898aebc2c313b91e70ae8f">right_max_depth</a>(0), key(key), val(val) {</div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;        }</div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;</div>
<div class="line"><a name="l00030"></a><span class="lineno"><a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#aa32ff2255f3db16a2f0c03012eadb016">   30</a></span>&#160;        <a class="code" href="struct_a_v_l_tree_1_1_avl_node.html">AvlNode</a>* <a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#aa32ff2255f3db16a2f0c03012eadb016">parent_node</a>;</div>
<div class="line"><a name="l00031"></a><span class="lineno"><a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#afa4752099eb52d45aa05b456c2d25699">   31</a></span>&#160;        <a class="code" href="struct_a_v_l_tree_1_1_avl_node.html">AvlNode</a>* <a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#afa4752099eb52d45aa05b456c2d25699">left_node</a>;</div>
<div class="line"><a name="l00032"></a><span class="lineno"><a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#a5db3b38b6d5f266624ff6230cfe01811">   32</a></span>&#160;        <a class="code" href="struct_a_v_l_tree_1_1_avl_node.html">AvlNode</a>* <a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#a5db3b38b6d5f266624ff6230cfe01811">right_node</a>;</div>
<div class="line"><a name="l00033"></a><span class="lineno"><a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#a60c8ca95cc50be08a63cff7ec0eba3e7">   33</a></span>&#160;        <span class="keywordtype">int</span> <a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#a60c8ca95cc50be08a63cff7ec0eba3e7">left_max_depth</a>;</div>
<div class="line"><a name="l00034"></a><span class="lineno"><a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#a1a086087b0898aebc2c313b91e70ae8f">   34</a></span>&#160;        <span class="keywordtype">int</span> <a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#a1a086087b0898aebc2c313b91e70ae8f">right_max_depth</a>;</div>
<div class="line"><a name="l00035"></a><span class="lineno"><a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#a8ccccd23a25c7d19f047fb6b4b3996e1">   35</a></span>&#160;        Key <a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#a8ccccd23a25c7d19f047fb6b4b3996e1">key</a>;</div>
<div class="line"><a name="l00036"></a><span class="lineno"><a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#a3d9c7193289f68ecdcf10b26a8425604">   36</a></span>&#160;        Val <a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#a3d9c7193289f68ecdcf10b26a8425604">val</a>;</div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;    };</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;</div>
<div class="line"><a name="l00039"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#a451ec32616485c7963914a7701671e57">   39</a></span>&#160;    AvlNode* <a class="code" href="class_a_v_l_tree.html#a451ec32616485c7963914a7701671e57">root_node</a>;</div>
<div class="line"><a name="l00040"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#ad9799c7e81d5f291885e2622d31d5b19">   40</a></span>&#160;    <span class="keywordtype">int</span> <a class="code" href="class_a_v_l_tree.html#ad9799c7e81d5f291885e2622d31d5b19">size</a>;</div>
<div class="line"><a name="l00041"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#aa998839d84cc3637cfa4314bea241771">   41</a></span>&#160;    <span class="keywordtype">bool</span> <a class="code" href="class_a_v_l_tree.html#aa998839d84cc3637cfa4314bea241771">doBalancing</a>;</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;    <span class="comment">//creates a new empty tree</span></div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;</div>
<div class="line"><a name="l00045"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#afdbb495f401322b412407e8eab6a588c">   45</a></span>&#160;    <a class="code" href="class_a_v_l_tree.html#afdbb495f401322b412407e8eab6a588c">AVLTree</a>() : <a class="code" href="class_a_v_l_tree.html#a451ec32616485c7963914a7701671e57">root_node</a>(0), <a class="code" href="class_a_v_l_tree.html#ad9799c7e81d5f291885e2622d31d5b19">size</a>(0), <a class="code" href="class_a_v_l_tree.html#aa998839d84cc3637cfa4314bea241771">doBalancing</a>(true) {</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;    }</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;    <span class="comment">//Destroys the tree</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#ae10c9d12f9c6aee8527c2d76128c1dc3">   52</a></span>&#160;<span class="comment"></span>    <span class="keyword">virtual</span> <a class="code" href="class_a_v_l_tree.html#ae10c9d12f9c6aee8527c2d76128c1dc3">~AVLTree</a>(<span class="keywordtype">void</span>) {</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;        <a class="code" href="class_a_v_l_tree.html#a51f292a4ddb380da95bd942e8196d403">reset</a>();</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;    }</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;</div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;    <span class="comment">//reset (clear) the tree</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#a51f292a4ddb380da95bd942e8196d403">   60</a></span>&#160;<span class="comment"></span>    <span class="keywordtype">void</span> <a class="code" href="class_a_v_l_tree.html#a51f292a4ddb380da95bd942e8196d403">reset</a>() {</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;        <a class="code" href="class_a_v_l_tree.html#a4576d0bd2613d687fb473c228f18994c">removeNode_</a>(<a class="code" href="class_a_v_l_tree.html#a451ec32616485c7963914a7701671e57">root_node</a>);</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;    }</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;</div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;    <span class="comment">//balance a node, invoke rotations on demand.</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#aedac89eccd0e484236241caaa41bc550">   70</a></span>&#160;<span class="comment"></span>    <span class="keywordtype">bool</span> <a class="code" href="class_a_v_l_tree.html#aedac89eccd0e484236241caaa41bc550">balanceNode_</a>(AvlNode* parent_node) {</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;        <span class="keywordtype">bool</span> didBalance = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;</div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;        <span class="keywordflow">if</span> (<a class="code" href="class_a_v_l_tree.html#aa998839d84cc3637cfa4314bea241771">doBalancing</a>) {</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;            <span class="keywordtype">int</span> balancing = <a class="code" href="class_a_v_l_tree.html#a3af39494f132a7e79a23189b677a90b9">getBalance_</a>(parent_node);</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;            <span class="keywordflow">if</span> (balancing &lt; -1) {</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;                <span class="keywordtype">int</span> balanceRightHeavy = <a class="code" href="class_a_v_l_tree.html#a3af39494f132a7e79a23189b677a90b9">getBalance_</a>(parent_node-&gt;left_node);</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;                <span class="keywordflow">if</span> (balanceRightHeavy &gt;= 1) {</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;                    <a class="code" href="class_a_v_l_tree.html#aef78b6448d8904f919aebbd85ff64b72">slr</a>(parent_node-&gt;left_node);</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;                    <a class="code" href="class_a_v_l_tree.html#a304ac90219fd9c546d12cbdfdbba0aa2">srr</a>(parent_node);</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;                } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;                    <a class="code" href="class_a_v_l_tree.html#a304ac90219fd9c546d12cbdfdbba0aa2">srr</a>(parent_node);</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;                }</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;                didBalance = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;            } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (balancing &gt; 1) {</div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;                <span class="keywordtype">int</span> balanceLeftHeavy = <a class="code" href="class_a_v_l_tree.html#a3af39494f132a7e79a23189b677a90b9">getBalance_</a>(parent_node-&gt;right_node);</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;                <span class="keywordflow">if</span> (balanceLeftHeavy &lt;= -1) {</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;                    <a class="code" href="class_a_v_l_tree.html#a304ac90219fd9c546d12cbdfdbba0aa2">srr</a>(parent_node-&gt;right_node);</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;                    <a class="code" href="class_a_v_l_tree.html#aef78b6448d8904f919aebbd85ff64b72">slr</a>(parent_node);</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;                } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;                    <a class="code" href="class_a_v_l_tree.html#aef78b6448d8904f919aebbd85ff64b72">slr</a>(parent_node);</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;                }</div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;                didBalance = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;            }</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;        }</div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;</div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;        <span class="keywordflow">return</span> didBalance;</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;    }</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;</div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;    <span class="comment">//remove an entry from the tree</span></div>
<div class="line"><a name="l00108"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#a38586de68268d2fc1c140f429c79e27c">  108</a></span>&#160;<span class="comment"></span>    <span class="keywordtype">bool</span> <span class="keyword">remove</span>(<span class="keyword">const</span> Key&amp; key) {</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;        AvlNode* node = <a class="code" href="class_a_v_l_tree.html#a6455f1012c30b05bbce7c1323e6574dd">getNode</a>(key);</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;        <span class="keywordflow">if</span> (!node) {</div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;            <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;        }</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;</div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;        this-&gt;<a class="code" href="class_a_v_l_tree.html#ad9799c7e81d5f291885e2622d31d5b19">size</a>--;</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;        AvlNode* parent_node = node-&gt;parent_node;</div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;        <span class="keywordtype">bool</span> is_root_node = node-&gt;parent_node ? <span class="keyword">false</span> : <span class="keyword">true</span>;</div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;        <span class="keywordtype">bool</span> parent_pos_right = !is_root_node ? parent_node-&gt;right_node == node : <span class="keyword">false</span>;</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;        <span class="keywordtype">bool</span> has_left = node-&gt;left_node ? <span class="keyword">true</span> : <span class="keyword">false</span>;</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;        <span class="keywordtype">bool</span> has_right = node-&gt;right_node ? <span class="keyword">true</span> : <span class="keyword">false</span>;</div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;</div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;        <span class="comment">//deleted node has no leaves</span></div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;        <span class="keywordflow">if</span> (!has_left &amp;&amp; !has_right) {</div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;            <span class="keywordflow">if</span> (!is_root_node) {</div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;                <span class="keywordflow">if</span> (!parent_pos_right) {</div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;                    parent_node-&gt;left_node = 0;</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;                    parent_node-&gt;left_max_depth--;</div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;                } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;                    parent_node-&gt;right_node = 0;</div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;                    parent_node-&gt;right_max_depth--;</div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;                }</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;            }</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;</div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;            <span class="keyword">delete</span> node;</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;</div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;            <span class="keywordflow">if</span> (is_root_node) {</div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;                <a class="code" href="class_a_v_l_tree.html#a451ec32616485c7963914a7701671e57">root_node</a> = 0;</div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;                <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;            }</div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;        }<span class="comment">// deleted node has exactly one leaf</span></div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;        <span class="keywordflow">else</span> <span class="keywordflow">if</span> ((has_left &amp;&amp; !has_right) || (has_right &amp;&amp; !has_left)) {</div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;            <span class="keywordtype">bool</span> detachRight = node-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#a5db3b38b6d5f266624ff6230cfe01811">right_node</a> ? <span class="keyword">true</span> : <span class="keyword">false</span>;</div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;</div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;            <span class="keywordflow">if</span> ((!parent_pos_right) &amp;&amp; (!is_root_node)) {</div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;                parent_node-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#afa4752099eb52d45aa05b456c2d25699">left_node</a> = detachRight ? node-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#a5db3b38b6d5f266624ff6230cfe01811">right_node</a> : node-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#afa4752099eb52d45aa05b456c2d25699">left_node</a>;</div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;                parent_node-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#a60c8ca95cc50be08a63cff7ec0eba3e7">left_max_depth</a> = (detachRight ? <a class="code" href="class_a_v_l_tree.html#acb101a9f4c2f897241892f7977821742">getMaxChildrenSize_</a>(node-&gt;right_node) : <a class="code" href="class_a_v_l_tree.html#acb101a9f4c2f897241892f7977821742">getMaxChildrenSize_</a>(node-&gt;left_node)) + 1;</div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;            } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!is_root_node) {</div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;                parent_node-&gt;right_node = detachRight ? node-&gt;right_node : node-&gt;left_node;</div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;                parent_node-&gt;right_max_depth = (detachRight ? <a class="code" href="class_a_v_l_tree.html#acb101a9f4c2f897241892f7977821742">getMaxChildrenSize_</a>(node-&gt;right_node) : <a class="code" href="class_a_v_l_tree.html#acb101a9f4c2f897241892f7977821742">getMaxChildrenSize_</a>(node-&gt;left_node)) + 1;</div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;            }</div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;</div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;            <span class="keywordflow">if</span> (detachRight) {</div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;                node-&gt;right_node-&gt;parent_node = parent_node;</div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;            } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;                node-&gt;left_node-&gt;parent_node = parent_node;</div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;            }</div>
<div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;</div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;            <span class="keywordflow">if</span> (is_root_node) {</div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;                <a class="code" href="class_a_v_l_tree.html#a451ec32616485c7963914a7701671e57">root_node</a> = detachRight ? node-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#a5db3b38b6d5f266624ff6230cfe01811">right_node</a> : node-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#afa4752099eb52d45aa05b456c2d25699">left_node</a>;</div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;                parent_node = <a class="code" href="class_a_v_l_tree.html#a451ec32616485c7963914a7701671e57">root_node</a>;</div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;            }</div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;</div>
<div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;            <span class="keyword">delete</span> node;</div>
<div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;        }<span class="comment">// deleted node has 2 leaves</span></div>
<div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;        <span class="keywordflow">else</span> <span class="keywordflow">if</span> (has_left &amp;&amp; has_right) {</div>
<div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;            AvlNode* replace_node = <a class="code" href="class_a_v_l_tree.html#aec0466befb48da84f5676d19e7502c7b">getLeftMostNode</a>(node-&gt;right_node);</div>
<div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;            AvlNode* propagation_root_node = replace_node-&gt;parent_node;</div>
<div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;            node-&gt;key = replace_node-&gt;key;</div>
<div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;            node-&gt;val = replace_node-&gt;val;</div>
<div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;</div>
<div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;            <span class="keywordflow">if</span> (replace_node != node-&gt;right_node) {</div>
<div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;                replace_node-&gt;parent_node-&gt;left_node = 0;</div>
<div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;                replace_node-&gt;parent_node-&gt;left_max_depth = 0;</div>
<div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;                parent_node = propagation_root_node;</div>
<div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;            } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;                AvlNode* old_right_node = replace_node-&gt;right_node;</div>
<div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;                node-&gt;right_node = old_right_node;</div>
<div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;                node-&gt;right_max_depth = old_right_node ? (old_right_node-&gt;right_max_depth + 1) : 0;</div>
<div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;                <span class="keywordflow">if</span> (old_right_node) {</div>
<div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;                    old_right_node-&gt;parent_node = node;</div>
<div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;                }</div>
<div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;                parent_node = node;</div>
<div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;            }</div>
<div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;            <span class="keyword">delete</span>(replace_node);</div>
<div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;        }</div>
<div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;</div>
<div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;        <span class="keywordtype">bool</span> didBalance = <a class="code" href="class_a_v_l_tree.html#aedac89eccd0e484236241caaa41bc550">balanceNode_</a>(parent_node);</div>
<div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;        <span class="keywordflow">if</span> (didBalance) {</div>
<div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;            parent_node = parent_node-&gt;parent_node;</div>
<div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;        }</div>
<div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;</div>
<div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;        <span class="keywordflow">if</span> (parent_node &amp;&amp; parent_node-&gt;parent_node) {</div>
<div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;            <a class="code" href="class_a_v_l_tree.html#ab4ed908dbbc4ba203c0d2d7a3057bde1">propagate_max_children_size</a>(parent_node-&gt;parent_node, parent_node, <a class="code" href="class_a_v_l_tree.html#acb101a9f4c2f897241892f7977821742">getMaxChildrenSize_</a>(parent_node), <span class="keyword">true</span>);</div>
<div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;        }</div>
<div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;        <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;    }</div>
<div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;</div>
<div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;    <span class="comment">//retrieves the leftmost child</span></div>
<div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;</div>
<div class="line"><a name="l00205"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#aec0466befb48da84f5676d19e7502c7b">  205</a></span>&#160;    AvlNode* <a class="code" href="class_a_v_l_tree.html#aec0466befb48da84f5676d19e7502c7b">getLeftMostNode</a>(AvlNode* node)<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;        AvlNode* current_node = node;</div>
<div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;        <span class="keywordflow">if</span> (!current_node-&gt;left_node) {</div>
<div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;            <span class="keywordflow">return</span> current_node;</div>
<div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;        } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;            <span class="keywordflow">return</span> <a class="code" href="class_a_v_l_tree.html#aec0466befb48da84f5676d19e7502c7b">getLeftMostNode</a>(current_node-&gt;left_node);</div>
<div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;        }</div>
<div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;    }</div>
<div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;</div>
<div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;    <span class="comment">//dump the map into dotty format </span></div>
<div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;</div>
<div class="line"><a name="l00220"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#af9ab51b5b410f110091946b786c24ace">  220</a></span>&#160;    <span class="keywordtype">void</span> <a class="code" href="class_a_v_l_tree.html#af9ab51b5b410f110091946b786c24ace">dumpMap_</a>(<span class="keyword">const</span> std::string&amp; sName) {</div>
<div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;        std::ofstream ofs(sName.c_str());</div>
<div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;        ofs &lt;&lt; <span class="stringliteral">&quot;digraph X { &quot;</span> &lt;&lt; std::endl;</div>
<div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;        <a class="code" href="class_a_v_l_tree.html#ad888a79615197506e6323d2fbcf588a1">drawNode_</a>(ofs, <a class="code" href="class_a_v_l_tree.html#a451ec32616485c7963914a7701671e57">root_node</a>);</div>
<div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;        ofs &lt;&lt; <span class="stringliteral">&quot;}&quot;</span> &lt;&lt; std::endl;</div>
<div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;    }</div>
<div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;</div>
<div class="line"><a name="l00231"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#af900bd65b9efc1e2e228d6a42af93fba">  231</a></span>&#160;    <span class="keywordtype">void</span> <a class="code" href="class_a_v_l_tree.html#af900bd65b9efc1e2e228d6a42af93fba">outputInvertedIndex</a>(ofstream &amp;ofs) {</div>
<div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;        <span class="comment">//std::ofstream ofs(sName.c_str());</span></div>
<div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;        <a class="code" href="class_a_v_l_tree.html#a77a559c5902727a852b1d311794a5240">outputInvertedNode_</a>(ofs, <a class="code" href="class_a_v_l_tree.html#a451ec32616485c7963914a7701671e57">root_node</a>);</div>
<div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;    }</div>
<div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;</div>
<div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;    <span class="comment">//Insert element into tree</span></div>
<div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;</div>
<div class="line"><a name="l00243"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#a5410cc28c4e64dc7ad0a251440a167c7">  243</a></span>&#160;    <span class="keywordtype">void</span> <a class="code" href="class_a_v_l_tree.html#a5410cc28c4e64dc7ad0a251440a167c7">insert</a>(<span class="keyword">const</span> Key&amp; key, <span class="keyword">const</span> Val&amp; val) {</div>
<div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;        AvlNode* current_node = this-&gt;<a class="code" href="class_a_v_l_tree.html#a451ec32616485c7963914a7701671e57">root_node</a>;</div>
<div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;</div>
<div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;        <span class="keywordflow">if</span> (!current_node) {</div>
<div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;            this-&gt;<a class="code" href="class_a_v_l_tree.html#a451ec32616485c7963914a7701671e57">root_node</a> = <span class="keyword">new</span> AvlNode(key, val);</div>
<div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;            <a class="code" href="class_a_v_l_tree.html#ad9799c7e81d5f291885e2622d31d5b19">size</a>++;</div>
<div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;            <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;        }</div>
<div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;</div>
<div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;        <span class="keywordflow">for</span> (;;) {</div>
<div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;            <span class="keywordflow">if</span> (current_node-&gt;key == key) {</div>
<div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;                current_node-&gt;val = val;</div>
<div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160;                <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;            }</div>
<div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;</div>
<div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;            <span class="keywordflow">if</span> (current_node-&gt;key &gt; key) {</div>
<div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;                <span class="keywordflow">if</span> (!current_node-&gt;left_node) {</div>
<div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;                    current_node-&gt;left_node = <a class="code" href="class_a_v_l_tree.html#aeb862a3bf7c28ae5c048b561b353d434">newNode_</a>(current_node, key, val);</div>
<div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;                    <a class="code" href="class_a_v_l_tree.html#ad9799c7e81d5f291885e2622d31d5b19">size</a>++;</div>
<div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;                    <a class="code" href="class_a_v_l_tree.html#ab4ed908dbbc4ba203c0d2d7a3057bde1">propagate_max_children_size</a>(current_node, current_node-&gt;left_node, 0, <span class="keyword">false</span>);</div>
<div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;                    <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;                }</div>
<div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;                current_node = current_node-&gt;left_node;</div>
<div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;            } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;                <span class="keywordflow">if</span> (!current_node-&gt;right_node) {</div>
<div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;                    current_node-&gt;right_node = <a class="code" href="class_a_v_l_tree.html#aeb862a3bf7c28ae5c048b561b353d434">newNode_</a>(current_node, key, val);</div>
<div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;                    <a class="code" href="class_a_v_l_tree.html#ad9799c7e81d5f291885e2622d31d5b19">size</a>++;</div>
<div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;                    <a class="code" href="class_a_v_l_tree.html#ab4ed908dbbc4ba203c0d2d7a3057bde1">propagate_max_children_size</a>(current_node, current_node-&gt;right_node, 0, <span class="keyword">false</span>);</div>
<div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;                    <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;                }</div>
<div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;                current_node = current_node-&gt;right_node;</div>
<div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;            }</div>
<div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;        }</div>
<div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;    }</div>
<div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;</div>
<div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;    <span class="comment">//Gets a key out of the avl tree</span></div>
<div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;</div>
<div class="line"><a name="l00285"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#a2550dd13b2ec3c2ce627a89ea058621b">  285</a></span>&#160;    Val <a class="code" href="class_a_v_l_tree.html#a2550dd13b2ec3c2ce627a89ea058621b">search</a>(<span class="keyword">const</span> Key&amp; key)<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;        AvlNode* ret = <a class="code" href="class_a_v_l_tree.html#a6455f1012c30b05bbce7c1323e6574dd">getNode</a>(key);</div>
<div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;        <span class="keywordflow">return</span> ret ? ret-&gt;val : 0;</div>
<div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;    }</div>
<div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;</div>
<div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;    <span class="comment">//Whether a key exists in the tree</span></div>
<div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;</div>
<div class="line"><a name="l00297"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#af59dd15f1a0a32faf4b837e41ceddd60">  297</a></span>&#160;    <span class="keywordtype">bool</span> <a class="code" href="class_a_v_l_tree.html#af59dd15f1a0a32faf4b837e41ceddd60">contains</a>(<span class="keyword">const</span> Key&amp; key)<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;        <span class="keywordflow">return</span> <a class="code" href="class_a_v_l_tree.html#a6455f1012c30b05bbce7c1323e6574dd">getNode</a>(key) ? <span class="keyword">true</span> : <span class="keyword">false</span>;</div>
<div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;    }</div>
<div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;</div>
<div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;    <span class="comment">//Returns the size of the tree.</span></div>
<div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;</div>
<div class="line"><a name="l00307"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#acd5ac7484c414558534a6a5c893ff70e">  307</a></span>&#160;    <span class="keywordtype">int</span> <a class="code" href="class_a_v_l_tree.html#acd5ac7484c414558534a6a5c893ff70e">getSize</a>()<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;        <span class="keywordflow">return</span> this-&gt;<a class="code" href="class_a_v_l_tree.html#ad9799c7e81d5f291885e2622d31d5b19">size</a>;</div>
<div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;    }</div>
<div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;</div>
<div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;<span class="keyword">protected</span>:</div>
<div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;</div>
<div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;    <span class="comment">//Gets a key out of the avl tree</span></div>
<div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;</div>
<div class="line"><a name="l00320"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#a6455f1012c30b05bbce7c1323e6574dd">  320</a></span>&#160;    AvlNode* <a class="code" href="class_a_v_l_tree.html#a6455f1012c30b05bbce7c1323e6574dd">getNode</a>(<span class="keyword">const</span> Key&amp; key)<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;        AvlNode* current_node = this-&gt;<a class="code" href="class_a_v_l_tree.html#a451ec32616485c7963914a7701671e57">root_node</a>;</div>
<div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;        <span class="keywordflow">if</span> (!current_node) {</div>
<div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;            <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160;        }</div>
<div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160;</div>
<div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160;        <span class="keywordflow">for</span> (;;) {</div>
<div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160;            <span class="keywordflow">if</span> (current_node-&gt;key == key) {</div>
<div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;                <span class="keywordflow">return</span> current_node;</div>
<div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160;            }</div>
<div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160;</div>
<div class="line"><a name="l00331"></a><span class="lineno">  331</span>&#160;            <span class="keywordflow">if</span> (current_node-&gt;key &gt; key) {</div>
<div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;                <span class="keywordflow">if</span> (current_node-&gt;left_node) {</div>
<div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160;                    current_node = current_node-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#afa4752099eb52d45aa05b456c2d25699">left_node</a>;</div>
<div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160;                } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160;                    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00336"></a><span class="lineno">  336</span>&#160;                }</div>
<div class="line"><a name="l00337"></a><span class="lineno">  337</span>&#160;            } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00338"></a><span class="lineno">  338</span>&#160;                <span class="keywordflow">if</span> (current_node-&gt;right_node) {</div>
<div class="line"><a name="l00339"></a><span class="lineno">  339</span>&#160;                    current_node = current_node-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#a5db3b38b6d5f266624ff6230cfe01811">right_node</a>;</div>
<div class="line"><a name="l00340"></a><span class="lineno">  340</span>&#160;                } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00341"></a><span class="lineno">  341</span>&#160;                    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00342"></a><span class="lineno">  342</span>&#160;                }</div>
<div class="line"><a name="l00343"></a><span class="lineno">  343</span>&#160;            }</div>
<div class="line"><a name="l00344"></a><span class="lineno">  344</span>&#160;        }</div>
<div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160;    }</div>
<div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160;</div>
<div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160;    <span class="comment">//Generates a new node (helper).</span></div>
<div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;</div>
<div class="line"><a name="l00356"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#aeb862a3bf7c28ae5c048b561b353d434">  356</a></span>&#160;    AvlNode* <a class="code" href="class_a_v_l_tree.html#aeb862a3bf7c28ae5c048b561b353d434">newNode_</a>(AvlNode* parent, <span class="keyword">const</span> Key&amp; key, <span class="keyword">const</span> Val&amp; val) {</div>
<div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160;        AvlNode* newNode = <span class="keyword">new</span> AvlNode(key, val);</div>
<div class="line"><a name="l00358"></a><span class="lineno">  358</span>&#160;        newNode-&gt;parent_node = parent;</div>
<div class="line"><a name="l00359"></a><span class="lineno">  359</span>&#160;        <span class="keywordflow">return</span> newNode;</div>
<div class="line"><a name="l00360"></a><span class="lineno">  360</span>&#160;    }</div>
<div class="line"><a name="l00361"></a><span class="lineno">  361</span>&#160;</div>
<div class="line"><a name="l00369"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#ab4ed908dbbc4ba203c0d2d7a3057bde1">  369</a></span>&#160;    <span class="keywordtype">void</span> <a class="code" href="class_a_v_l_tree.html#ab4ed908dbbc4ba203c0d2d7a3057bde1">propagate_max_children_size</a>(AvlNode* notified_node, AvlNode* sender_node, <span class="keywordtype">int</span> child_maxsize, <span class="keywordtype">bool</span> is_deletion) {</div>
<div class="line"><a name="l00370"></a><span class="lineno">  370</span>&#160;        <span class="keywordtype">bool</span> isRight = sender_node == notified_node-&gt;right_node;</div>
<div class="line"><a name="l00371"></a><span class="lineno">  371</span>&#160;        <span class="keywordtype">int</span> maxsize = child_maxsize + 1;</div>
<div class="line"><a name="l00372"></a><span class="lineno">  372</span>&#160;        <span class="keywordtype">int</span> old_maxsize = <a class="code" href="class_a_v_l_tree.html#acb101a9f4c2f897241892f7977821742">getMaxChildrenSize_</a>(notified_node);</div>
<div class="line"><a name="l00373"></a><span class="lineno">  373</span>&#160;        <span class="keywordflow">if</span> (isRight) {</div>
<div class="line"><a name="l00374"></a><span class="lineno">  374</span>&#160;            notified_node-&gt;right_max_depth = maxsize;</div>
<div class="line"><a name="l00375"></a><span class="lineno">  375</span>&#160;        } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00376"></a><span class="lineno">  376</span>&#160;            notified_node-&gt;left_max_depth = maxsize;</div>
<div class="line"><a name="l00377"></a><span class="lineno">  377</span>&#160;        }</div>
<div class="line"><a name="l00378"></a><span class="lineno">  378</span>&#160;        <span class="keywordtype">int</span> new_maxsize = <a class="code" href="class_a_v_l_tree.html#acb101a9f4c2f897241892f7977821742">getMaxChildrenSize_</a>(notified_node);</div>
<div class="line"><a name="l00379"></a><span class="lineno">  379</span>&#160;</div>
<div class="line"><a name="l00380"></a><span class="lineno">  380</span>&#160;        <span class="keywordflow">if</span> (<a class="code" href="class_a_v_l_tree.html#aedac89eccd0e484236241caaa41bc550">balanceNode_</a>(notified_node)) {</div>
<div class="line"><a name="l00381"></a><span class="lineno">  381</span>&#160;            <span class="keywordflow">if</span> (is_deletion) {</div>
<div class="line"><a name="l00382"></a><span class="lineno">  382</span>&#160;                notified_node = notified_node-&gt;parent_node; <span class="comment">// our notified_node moved, readjust</span></div>
<div class="line"><a name="l00383"></a><span class="lineno">  383</span>&#160;            } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00384"></a><span class="lineno">  384</span>&#160;                <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00385"></a><span class="lineno">  385</span>&#160;            }</div>
<div class="line"><a name="l00386"></a><span class="lineno">  386</span>&#160;        }</div>
<div class="line"><a name="l00387"></a><span class="lineno">  387</span>&#160;</div>
<div class="line"><a name="l00388"></a><span class="lineno">  388</span>&#160;        <span class="keywordflow">if</span> (notified_node-&gt;parent_node) {</div>
<div class="line"><a name="l00389"></a><span class="lineno">  389</span>&#160;            <span class="keywordflow">if</span> (is_deletion ? new_maxsize != old_maxsize : new_maxsize &gt; old_maxsize) {</div>
<div class="line"><a name="l00390"></a><span class="lineno">  390</span>&#160;                <a class="code" href="class_a_v_l_tree.html#ab4ed908dbbc4ba203c0d2d7a3057bde1">propagate_max_children_size</a>(notified_node-&gt;parent_node, notified_node, new_maxsize, is_deletion);</div>
<div class="line"><a name="l00391"></a><span class="lineno">  391</span>&#160;            }</div>
<div class="line"><a name="l00392"></a><span class="lineno">  392</span>&#160;        }</div>
<div class="line"><a name="l00393"></a><span class="lineno">  393</span>&#160;    }</div>
<div class="line"><a name="l00394"></a><span class="lineno">  394</span>&#160;</div>
<div class="line"><a name="l00395"></a><span class="lineno">  395</span>&#160;    <span class="comment">//returns the balance for a given avl node </span></div>
<div class="line"><a name="l00396"></a><span class="lineno">  396</span>&#160;</div>
<div class="line"><a name="l00402"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#a3af39494f132a7e79a23189b677a90b9">  402</a></span>&#160;    <span class="keywordtype">int</span> <a class="code" href="class_a_v_l_tree.html#a3af39494f132a7e79a23189b677a90b9">getBalance_</a>(AvlNode* node)<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00403"></a><span class="lineno">  403</span>&#160;        <span class="keywordflow">return</span> node-&gt;right_max_depth - node-&gt;left_max_depth;</div>
<div class="line"><a name="l00404"></a><span class="lineno">  404</span>&#160;    }</div>
<div class="line"><a name="l00405"></a><span class="lineno">  405</span>&#160;</div>
<div class="line"><a name="l00406"></a><span class="lineno">  406</span>&#160;    <span class="comment">//returns the max children size</span></div>
<div class="line"><a name="l00407"></a><span class="lineno">  407</span>&#160;</div>
<div class="line"><a name="l00413"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#acb101a9f4c2f897241892f7977821742">  413</a></span>&#160;    <span class="keywordtype">int</span> <a class="code" href="class_a_v_l_tree.html#acb101a9f4c2f897241892f7977821742">getMaxChildrenSize_</a>(AvlNode* node)<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00414"></a><span class="lineno">  414</span>&#160;        <span class="keywordflow">return</span> std::max(node-&gt;left_max_depth, node-&gt;right_max_depth);</div>
<div class="line"><a name="l00415"></a><span class="lineno">  415</span>&#160;    }</div>
<div class="line"><a name="l00416"></a><span class="lineno">  416</span>&#160;</div>
<div class="line"><a name="l00417"></a><span class="lineno">  417</span>&#160;    <span class="comment">//remove Node and all of its children, deallocate memory, unlink the parents pointers (setting it to 0) and child count.</span></div>
<div class="line"><a name="l00418"></a><span class="lineno">  418</span>&#160;</div>
<div class="line"><a name="l00423"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#a4576d0bd2613d687fb473c228f18994c">  423</a></span>&#160;    <span class="keywordtype">void</span> <a class="code" href="class_a_v_l_tree.html#a4576d0bd2613d687fb473c228f18994c">removeNode_</a>(AvlNode* node) {</div>
<div class="line"><a name="l00424"></a><span class="lineno">  424</span>&#160;        <span class="keywordflow">if</span> (!node) {</div>
<div class="line"><a name="l00425"></a><span class="lineno">  425</span>&#160;            <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00426"></a><span class="lineno">  426</span>&#160;        }</div>
<div class="line"><a name="l00427"></a><span class="lineno">  427</span>&#160;</div>
<div class="line"><a name="l00428"></a><span class="lineno">  428</span>&#160;        <span class="keywordflow">if</span> (node-&gt;left_node) {</div>
<div class="line"><a name="l00429"></a><span class="lineno">  429</span>&#160;            <a class="code" href="class_a_v_l_tree.html#a4576d0bd2613d687fb473c228f18994c">removeNode_</a>(node-&gt;left_node);</div>
<div class="line"><a name="l00430"></a><span class="lineno">  430</span>&#160;        }</div>
<div class="line"><a name="l00431"></a><span class="lineno">  431</span>&#160;        <span class="keywordflow">if</span> (node-&gt;right_node) {</div>
<div class="line"><a name="l00432"></a><span class="lineno">  432</span>&#160;            <a class="code" href="class_a_v_l_tree.html#a4576d0bd2613d687fb473c228f18994c">removeNode_</a>(node-&gt;right_node);</div>
<div class="line"><a name="l00433"></a><span class="lineno">  433</span>&#160;        }</div>
<div class="line"><a name="l00434"></a><span class="lineno">  434</span>&#160;</div>
<div class="line"><a name="l00435"></a><span class="lineno">  435</span>&#160;        this-&gt;<a class="code" href="class_a_v_l_tree.html#ad9799c7e81d5f291885e2622d31d5b19">size</a>--;</div>
<div class="line"><a name="l00436"></a><span class="lineno">  436</span>&#160;</div>
<div class="line"><a name="l00437"></a><span class="lineno">  437</span>&#160;        <span class="keywordflow">if</span> (node-&gt;parent_node) {</div>
<div class="line"><a name="l00438"></a><span class="lineno">  438</span>&#160;            <span class="keywordflow">if</span> (node-&gt;parent_node-&gt;left_node == node) {</div>
<div class="line"><a name="l00439"></a><span class="lineno">  439</span>&#160;                node-&gt;parent_node-&gt;left_node = 0;</div>
<div class="line"><a name="l00440"></a><span class="lineno">  440</span>&#160;                node-&gt;parent_node-&gt;left_max_depth--;</div>
<div class="line"><a name="l00441"></a><span class="lineno">  441</span>&#160;            } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00442"></a><span class="lineno">  442</span>&#160;                node-&gt;parent_node-&gt;right_node = 0;</div>
<div class="line"><a name="l00443"></a><span class="lineno">  443</span>&#160;                node-&gt;parent_node-&gt;right_max_depth--;</div>
<div class="line"><a name="l00444"></a><span class="lineno">  444</span>&#160;            }</div>
<div class="line"><a name="l00445"></a><span class="lineno">  445</span>&#160;        } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00446"></a><span class="lineno">  446</span>&#160;            <a class="code" href="class_a_v_l_tree.html#a451ec32616485c7963914a7701671e57">root_node</a> = 0;</div>
<div class="line"><a name="l00447"></a><span class="lineno">  447</span>&#160;        }</div>
<div class="line"><a name="l00448"></a><span class="lineno">  448</span>&#160;</div>
<div class="line"><a name="l00449"></a><span class="lineno">  449</span>&#160;        <span class="keyword">delete</span> node;</div>
<div class="line"><a name="l00450"></a><span class="lineno">  450</span>&#160;    }</div>
<div class="line"><a name="l00451"></a><span class="lineno">  451</span>&#160;</div>
<div class="line"><a name="l00452"></a><span class="lineno">  452</span>&#160;    <span class="comment">//set tree balancing mode (useful for debugging purposes)</span></div>
<div class="line"><a name="l00453"></a><span class="lineno">  453</span>&#160;</div>
<div class="line"><a name="l00458"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#a59ae9495ddd1f41913be99655a46ceb4">  458</a></span>&#160;    <span class="keywordtype">void</span> <a class="code" href="class_a_v_l_tree.html#a59ae9495ddd1f41913be99655a46ceb4">setBalancing</a>(<span class="keywordtype">bool</span> mode) {</div>
<div class="line"><a name="l00459"></a><span class="lineno">  459</span>&#160;        <a class="code" href="class_a_v_l_tree.html#aa998839d84cc3637cfa4314bea241771">doBalancing</a> = mode;</div>
<div class="line"><a name="l00460"></a><span class="lineno">  460</span>&#160;    }</div>
<div class="line"><a name="l00461"></a><span class="lineno">  461</span>&#160;</div>
<div class="line"><a name="l00462"></a><span class="lineno">  462</span>&#160;    <span class="comment">//single right rotate</span></div>
<div class="line"><a name="l00463"></a><span class="lineno">  463</span>&#160;</div>
<div class="line"><a name="l00468"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#a304ac90219fd9c546d12cbdfdbba0aa2">  468</a></span>&#160;    <span class="keywordtype">void</span> <a class="code" href="class_a_v_l_tree.html#a304ac90219fd9c546d12cbdfdbba0aa2">srr</a>(AvlNode* node) {</div>
<div class="line"><a name="l00469"></a><span class="lineno">  469</span>&#160;        <span class="keywordtype">bool</span> newRoot = (node == <a class="code" href="class_a_v_l_tree.html#a451ec32616485c7963914a7701671e57">root_node</a>);</div>
<div class="line"><a name="l00470"></a><span class="lineno">  470</span>&#160;        node-&gt;left_node-&gt;parent_node = node-&gt;parent_node;</div>
<div class="line"><a name="l00471"></a><span class="lineno">  471</span>&#160;        AvlNode* old_right_node = node-&gt;left_node-&gt;right_node;</div>
<div class="line"><a name="l00472"></a><span class="lineno">  472</span>&#160;        node-&gt;left_node-&gt;right_node = node;</div>
<div class="line"><a name="l00473"></a><span class="lineno">  473</span>&#160;        node-&gt;parent_node = node-&gt;left_node;</div>
<div class="line"><a name="l00474"></a><span class="lineno">  474</span>&#160;        node-&gt;parent_node-&gt;right_node = node;</div>
<div class="line"><a name="l00475"></a><span class="lineno">  475</span>&#160;        node-&gt;left_node = old_right_node;</div>
<div class="line"><a name="l00476"></a><span class="lineno">  476</span>&#160;        node-&gt;left_max_depth = old_right_node ? <a class="code" href="class_a_v_l_tree.html#acb101a9f4c2f897241892f7977821742">getMaxChildrenSize_</a>(old_right_node) : 0;</div>
<div class="line"><a name="l00477"></a><span class="lineno">  477</span>&#160;        <span class="keywordflow">if</span> (old_right_node) {</div>
<div class="line"><a name="l00478"></a><span class="lineno">  478</span>&#160;            old_right_node-&gt;parent_node = node;</div>
<div class="line"><a name="l00479"></a><span class="lineno">  479</span>&#160;            node-&gt;left_max_depth++;</div>
<div class="line"><a name="l00480"></a><span class="lineno">  480</span>&#160;        }</div>
<div class="line"><a name="l00481"></a><span class="lineno">  481</span>&#160;        node-&gt;parent_node-&gt;right_max_depth++;</div>
<div class="line"><a name="l00482"></a><span class="lineno">  482</span>&#160;</div>
<div class="line"><a name="l00483"></a><span class="lineno">  483</span>&#160;        <span class="keywordflow">if</span> (newRoot) {</div>
<div class="line"><a name="l00484"></a><span class="lineno">  484</span>&#160;            <a class="code" href="class_a_v_l_tree.html#a451ec32616485c7963914a7701671e57">root_node</a> = node-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#aa32ff2255f3db16a2f0c03012eadb016">parent_node</a>;</div>
<div class="line"><a name="l00485"></a><span class="lineno">  485</span>&#160;        } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00486"></a><span class="lineno">  486</span>&#160;            <span class="keywordflow">if</span> (node-&gt;parent_node-&gt;parent_node-&gt;left_node == node) {</div>
<div class="line"><a name="l00487"></a><span class="lineno">  487</span>&#160;                node-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#aa32ff2255f3db16a2f0c03012eadb016">parent_node</a>-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#aa32ff2255f3db16a2f0c03012eadb016">parent_node</a>-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#afa4752099eb52d45aa05b456c2d25699">left_node</a> = node-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#aa32ff2255f3db16a2f0c03012eadb016">parent_node</a>;</div>
<div class="line"><a name="l00488"></a><span class="lineno">  488</span>&#160;            } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00489"></a><span class="lineno">  489</span>&#160;                node-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#aa32ff2255f3db16a2f0c03012eadb016">parent_node</a>-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#aa32ff2255f3db16a2f0c03012eadb016">parent_node</a>-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#a5db3b38b6d5f266624ff6230cfe01811">right_node</a> = node-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#aa32ff2255f3db16a2f0c03012eadb016">parent_node</a>;</div>
<div class="line"><a name="l00490"></a><span class="lineno">  490</span>&#160;            }</div>
<div class="line"><a name="l00491"></a><span class="lineno">  491</span>&#160;        }</div>
<div class="line"><a name="l00492"></a><span class="lineno">  492</span>&#160;    }</div>
<div class="line"><a name="l00493"></a><span class="lineno">  493</span>&#160;</div>
<div class="line"><a name="l00494"></a><span class="lineno">  494</span>&#160;    <span class="comment">//single left rotate</span></div>
<div class="line"><a name="l00495"></a><span class="lineno">  495</span>&#160;</div>
<div class="line"><a name="l00500"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#aef78b6448d8904f919aebbd85ff64b72">  500</a></span>&#160;    <span class="keywordtype">void</span> <a class="code" href="class_a_v_l_tree.html#aef78b6448d8904f919aebbd85ff64b72">slr</a>(AvlNode* node) {</div>
<div class="line"><a name="l00501"></a><span class="lineno">  501</span>&#160;        <span class="keywordtype">bool</span> newRoot = (node == <a class="code" href="class_a_v_l_tree.html#a451ec32616485c7963914a7701671e57">root_node</a>);</div>
<div class="line"><a name="l00502"></a><span class="lineno">  502</span>&#160;        node-&gt;right_node-&gt;parent_node = node-&gt;parent_node;</div>
<div class="line"><a name="l00503"></a><span class="lineno">  503</span>&#160;        AvlNode* old_left_node = node-&gt;right_node-&gt;left_node;</div>
<div class="line"><a name="l00504"></a><span class="lineno">  504</span>&#160;        node-&gt;right_node-&gt;left_node = node;</div>
<div class="line"><a name="l00505"></a><span class="lineno">  505</span>&#160;        node-&gt;parent_node = node-&gt;right_node;</div>
<div class="line"><a name="l00506"></a><span class="lineno">  506</span>&#160;        node-&gt;parent_node-&gt;left_node = node;</div>
<div class="line"><a name="l00507"></a><span class="lineno">  507</span>&#160;        node-&gt;right_node = old_left_node;</div>
<div class="line"><a name="l00508"></a><span class="lineno">  508</span>&#160;        node-&gt;right_max_depth = old_left_node ? <a class="code" href="class_a_v_l_tree.html#acb101a9f4c2f897241892f7977821742">getMaxChildrenSize_</a>(old_left_node) : 0;</div>
<div class="line"><a name="l00509"></a><span class="lineno">  509</span>&#160;        <span class="keywordflow">if</span> (old_left_node) {</div>
<div class="line"><a name="l00510"></a><span class="lineno">  510</span>&#160;            old_left_node-&gt;parent_node = node;</div>
<div class="line"><a name="l00511"></a><span class="lineno">  511</span>&#160;            node-&gt;right_max_depth++;</div>
<div class="line"><a name="l00512"></a><span class="lineno">  512</span>&#160;        }</div>
<div class="line"><a name="l00513"></a><span class="lineno">  513</span>&#160;        node-&gt;parent_node-&gt;left_max_depth++;</div>
<div class="line"><a name="l00514"></a><span class="lineno">  514</span>&#160;</div>
<div class="line"><a name="l00515"></a><span class="lineno">  515</span>&#160;        <span class="keywordflow">if</span> (newRoot) {</div>
<div class="line"><a name="l00516"></a><span class="lineno">  516</span>&#160;            <a class="code" href="class_a_v_l_tree.html#a451ec32616485c7963914a7701671e57">root_node</a> = node-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#aa32ff2255f3db16a2f0c03012eadb016">parent_node</a>;</div>
<div class="line"><a name="l00517"></a><span class="lineno">  517</span>&#160;        } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00518"></a><span class="lineno">  518</span>&#160;            <span class="keywordflow">if</span> (node-&gt;parent_node-&gt;parent_node-&gt;left_node == node) {</div>
<div class="line"><a name="l00519"></a><span class="lineno">  519</span>&#160;                node-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#aa32ff2255f3db16a2f0c03012eadb016">parent_node</a>-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#aa32ff2255f3db16a2f0c03012eadb016">parent_node</a>-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#afa4752099eb52d45aa05b456c2d25699">left_node</a> = node-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#aa32ff2255f3db16a2f0c03012eadb016">parent_node</a>;</div>
<div class="line"><a name="l00520"></a><span class="lineno">  520</span>&#160;            } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00521"></a><span class="lineno">  521</span>&#160;                node-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#aa32ff2255f3db16a2f0c03012eadb016">parent_node</a>-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#aa32ff2255f3db16a2f0c03012eadb016">parent_node</a>-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#a5db3b38b6d5f266624ff6230cfe01811">right_node</a> = node-&gt;<a class="code" href="struct_a_v_l_tree_1_1_avl_node.html#aa32ff2255f3db16a2f0c03012eadb016">parent_node</a>;</div>
<div class="line"><a name="l00522"></a><span class="lineno">  522</span>&#160;            }</div>
<div class="line"><a name="l00523"></a><span class="lineno">  523</span>&#160;        }</div>
<div class="line"><a name="l00524"></a><span class="lineno">  524</span>&#160;    }</div>
<div class="line"><a name="l00525"></a><span class="lineno">  525</span>&#160;</div>
<div class="line"><a name="l00526"></a><span class="lineno">  526</span>&#160;</div>
<div class="line"><a name="l00527"></a><span class="lineno">  527</span>&#160;</div>
<div class="line"><a name="l00528"></a><span class="lineno">  528</span>&#160;    <span class="comment">//create a node string representation </span></div>
<div class="line"><a name="l00529"></a><span class="lineno">  529</span>&#160;</div>
<div class="line"><a name="l00535"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#af1ac81bada2872487432c49bdeefb445">  535</a></span>&#160;    <span class="keywordtype">void</span> <a class="code" href="class_a_v_l_tree.html#af1ac81bada2872487432c49bdeefb445">createNode</a>(AvlNode* pCurr, std::ostream&amp; ssOut) {</div>
<div class="line"><a name="l00536"></a><span class="lineno">  536</span>&#160;        ssOut &lt;&lt; <span class="stringliteral">&quot;\&quot;[k:&quot;</span> &lt;&lt; pCurr-&gt;key &lt;&lt; <span class="stringliteral">&quot;], &quot;</span> &lt;&lt; (int) (pCurr-&gt;right_max_depth - pCurr-&gt;left_max_depth) &lt;&lt; <span class="stringliteral">&quot;\&quot;&quot;</span>;</div>
<div class="line"><a name="l00537"></a><span class="lineno">  537</span>&#160;    }</div>
<div class="line"><a name="l00538"></a><span class="lineno">  538</span>&#160;</div>
<div class="line"><a name="l00544"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#a33bbe6bc4a4b5bf3ef1d3bc006071684">  544</a></span>&#160;    <span class="keywordtype">void</span> <a class="code" href="class_a_v_l_tree.html#a33bbe6bc4a4b5bf3ef1d3bc006071684">createInvertedIndexNode</a>(AvlNode* pCurr, std::ostream&amp; ssOut) {</div>
<div class="line"><a name="l00545"></a><span class="lineno">  545</span>&#160;        ssOut &lt;&lt; pCurr-&gt;key &lt;&lt; <span class="stringliteral">&quot;|&quot;</span>;</div>
<div class="line"><a name="l00546"></a><span class="lineno">  546</span>&#160;        std::map&lt;int, int&gt;* documents = pCurr-&gt;val-&gt;getDocumentOccurances();</div>
<div class="line"><a name="l00547"></a><span class="lineno">  547</span>&#160;</div>
<div class="line"><a name="l00548"></a><span class="lineno">  548</span>&#160;        <span class="keywordflow">for</span> (std::map&lt;int, int&gt;::iterator docit = documents-&gt;begin(); docit != documents-&gt;end(); ++docit) {</div>
<div class="line"><a name="l00549"></a><span class="lineno">  549</span>&#160;            <span class="keywordflow">if</span> (docit != documents-&gt;begin()) {</div>
<div class="line"><a name="l00550"></a><span class="lineno">  550</span>&#160;                ssOut &lt;&lt; <span class="charliteral">&#39;,&#39;</span>;</div>
<div class="line"><a name="l00551"></a><span class="lineno">  551</span>&#160;            }</div>
<div class="line"><a name="l00552"></a><span class="lineno">  552</span>&#160;            ssOut &lt;&lt; docit-&gt;first;</div>
<div class="line"><a name="l00553"></a><span class="lineno">  553</span>&#160;        }</div>
<div class="line"><a name="l00554"></a><span class="lineno">  554</span>&#160;        ssOut &lt;&lt; std::endl;</div>
<div class="line"><a name="l00555"></a><span class="lineno">  555</span>&#160;    }</div>
<div class="line"><a name="l00556"></a><span class="lineno">  556</span>&#160;</div>
<div class="line"><a name="l00557"></a><span class="lineno">  557</span>&#160;    <span class="comment">//draw a single node for dotty output</span></div>
<div class="line"><a name="l00558"></a><span class="lineno">  558</span>&#160;</div>
<div class="line"><a name="l00564"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#ad888a79615197506e6323d2fbcf588a1">  564</a></span>&#160;    <span class="keywordtype">void</span> <a class="code" href="class_a_v_l_tree.html#ad888a79615197506e6323d2fbcf588a1">drawNode_</a>(std::ofstream&amp; fsOut, AvlNode* pCurr) {</div>
<div class="line"><a name="l00565"></a><span class="lineno">  565</span>&#160;        <span class="keywordflow">if</span> (!pCurr) {</div>
<div class="line"><a name="l00566"></a><span class="lineno">  566</span>&#160;            <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00567"></a><span class="lineno">  567</span>&#160;        }</div>
<div class="line"><a name="l00568"></a><span class="lineno">  568</span>&#160;        std::stringstream ssNode1, ssNode2, ssNode3, ssNodeTmp, ssNodeTmp2;</div>
<div class="line"><a name="l00569"></a><span class="lineno">  569</span>&#160;        <a class="code" href="class_a_v_l_tree.html#af1ac81bada2872487432c49bdeefb445">createNode</a>(pCurr, ssNode1);</div>
<div class="line"><a name="l00570"></a><span class="lineno">  570</span>&#160;        <span class="keywordflow">if</span> (pCurr-&gt;left_node) {</div>
<div class="line"><a name="l00571"></a><span class="lineno">  571</span>&#160;            <a class="code" href="class_a_v_l_tree.html#af1ac81bada2872487432c49bdeefb445">createNode</a>(pCurr-&gt;left_node, ssNode2);</div>
<div class="line"><a name="l00572"></a><span class="lineno">  572</span>&#160;            <a class="code" href="class_a_v_l_tree.html#af1ac81bada2872487432c49bdeefb445">createNode</a>(pCurr-&gt;left_node-&gt;parent_node, ssNodeTmp);</div>
<div class="line"><a name="l00573"></a><span class="lineno">  573</span>&#160;            fsOut &lt;&lt; ssNode1.str() &lt;&lt; <span class="stringliteral">&quot; -&gt; &quot;</span> &lt;&lt; ssNode2.str() &lt;&lt; <span class="stringliteral">&quot; [label=\&quot;L\&quot;];&quot;</span> &lt;&lt; std::endl;</div>
<div class="line"><a name="l00574"></a><span class="lineno">  574</span>&#160;            fsOut &lt;&lt; ssNode2.str() &lt;&lt; <span class="stringliteral">&quot; -&gt; &quot;</span> &lt;&lt; ssNodeTmp.str() &lt;&lt; <span class="stringliteral">&quot; [label=\&quot;PL\&quot;];&quot;</span> &lt;&lt; std::endl;</div>
<div class="line"><a name="l00575"></a><span class="lineno">  575</span>&#160;        }</div>
<div class="line"><a name="l00576"></a><span class="lineno">  576</span>&#160;        <span class="keywordflow">if</span> (pCurr-&gt;right_node) {</div>
<div class="line"><a name="l00577"></a><span class="lineno">  577</span>&#160;            <a class="code" href="class_a_v_l_tree.html#af1ac81bada2872487432c49bdeefb445">createNode</a>(pCurr-&gt;right_node, ssNode3);</div>
<div class="line"><a name="l00578"></a><span class="lineno">  578</span>&#160;            <a class="code" href="class_a_v_l_tree.html#af1ac81bada2872487432c49bdeefb445">createNode</a>(pCurr-&gt;right_node-&gt;parent_node, ssNodeTmp2);</div>
<div class="line"><a name="l00579"></a><span class="lineno">  579</span>&#160;            fsOut &lt;&lt; ssNode1.str() &lt;&lt; <span class="stringliteral">&quot; -&gt; &quot;</span> &lt;&lt; ssNode3.str() &lt;&lt; <span class="stringliteral">&quot; [label=\&quot;R\&quot;];&quot;</span> &lt;&lt; std::endl;</div>
<div class="line"><a name="l00580"></a><span class="lineno">  580</span>&#160;            fsOut &lt;&lt; ssNode3.str() &lt;&lt; <span class="stringliteral">&quot; -&gt; &quot;</span> &lt;&lt; ssNodeTmp2.str() &lt;&lt; <span class="stringliteral">&quot; [label=\&quot;PR\&quot;];&quot;</span> &lt;&lt; std::endl;</div>
<div class="line"><a name="l00581"></a><span class="lineno">  581</span>&#160;        }</div>
<div class="line"><a name="l00582"></a><span class="lineno">  582</span>&#160;        <span class="keywordflow">if</span> (pCurr-&gt;left_node) {</div>
<div class="line"><a name="l00583"></a><span class="lineno">  583</span>&#160;            <a class="code" href="class_a_v_l_tree.html#ad888a79615197506e6323d2fbcf588a1">drawNode_</a>(fsOut, pCurr-&gt;left_node);</div>
<div class="line"><a name="l00584"></a><span class="lineno">  584</span>&#160;        }</div>
<div class="line"><a name="l00585"></a><span class="lineno">  585</span>&#160;        <span class="keywordflow">if</span> (pCurr-&gt;right_node) {</div>
<div class="line"><a name="l00586"></a><span class="lineno">  586</span>&#160;            <a class="code" href="class_a_v_l_tree.html#ad888a79615197506e6323d2fbcf588a1">drawNode_</a>(fsOut, pCurr-&gt;right_node);</div>
<div class="line"><a name="l00587"></a><span class="lineno">  587</span>&#160;        }</div>
<div class="line"><a name="l00588"></a><span class="lineno">  588</span>&#160;        <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00589"></a><span class="lineno">  589</span>&#160;    }</div>
<div class="line"><a name="l00590"></a><span class="lineno">  590</span>&#160;</div>
<div class="line"><a name="l00596"></a><span class="lineno"><a class="code" href="class_a_v_l_tree.html#a77a559c5902727a852b1d311794a5240">  596</a></span>&#160;    <span class="keywordtype">void</span> <a class="code" href="class_a_v_l_tree.html#a77a559c5902727a852b1d311794a5240">outputInvertedNode_</a>(std::ofstream&amp; fsOut, AvlNode* pCurr) {</div>
<div class="line"><a name="l00597"></a><span class="lineno">  597</span>&#160;        <span class="keywordflow">if</span> (!pCurr) {</div>
<div class="line"><a name="l00598"></a><span class="lineno">  598</span>&#160;            <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00599"></a><span class="lineno">  599</span>&#160;        }</div>
<div class="line"><a name="l00600"></a><span class="lineno">  600</span>&#160;        std::stringstream ssNode1, ssNode2, ssNode3, ssNodeTmp, ssNodeTmp2;</div>
<div class="line"><a name="l00601"></a><span class="lineno">  601</span>&#160;        <a class="code" href="class_a_v_l_tree.html#a33bbe6bc4a4b5bf3ef1d3bc006071684">createInvertedIndexNode</a>(pCurr, ssNode1);</div>
<div class="line"><a name="l00602"></a><span class="lineno">  602</span>&#160;        <span class="keywordflow">if</span> (pCurr-&gt;left_node) {</div>
<div class="line"><a name="l00603"></a><span class="lineno">  603</span>&#160;            <a class="code" href="class_a_v_l_tree.html#a33bbe6bc4a4b5bf3ef1d3bc006071684">createInvertedIndexNode</a>(pCurr-&gt;left_node, ssNode2);</div>
<div class="line"><a name="l00604"></a><span class="lineno">  604</span>&#160;            <a class="code" href="class_a_v_l_tree.html#a33bbe6bc4a4b5bf3ef1d3bc006071684">createInvertedIndexNode</a>(pCurr-&gt;left_node-&gt;parent_node, ssNodeTmp);</div>
<div class="line"><a name="l00605"></a><span class="lineno">  605</span>&#160;            fsOut &lt;&lt; ssNode1.str();</div>
<div class="line"><a name="l00606"></a><span class="lineno">  606</span>&#160;            fsOut &lt;&lt; ssNode2.str();</div>
<div class="line"><a name="l00607"></a><span class="lineno">  607</span>&#160;        }</div>
<div class="line"><a name="l00608"></a><span class="lineno">  608</span>&#160;        <span class="keywordflow">if</span> (pCurr-&gt;right_node) {</div>
<div class="line"><a name="l00609"></a><span class="lineno">  609</span>&#160;            <a class="code" href="class_a_v_l_tree.html#a33bbe6bc4a4b5bf3ef1d3bc006071684">createInvertedIndexNode</a>(pCurr-&gt;right_node, ssNode3);</div>
<div class="line"><a name="l00610"></a><span class="lineno">  610</span>&#160;            <a class="code" href="class_a_v_l_tree.html#a33bbe6bc4a4b5bf3ef1d3bc006071684">createInvertedIndexNode</a>(pCurr-&gt;right_node-&gt;parent_node, ssNodeTmp2);</div>
<div class="line"><a name="l00611"></a><span class="lineno">  611</span>&#160;            fsOut &lt;&lt; ssNode1.str();</div>
<div class="line"><a name="l00612"></a><span class="lineno">  612</span>&#160;            fsOut &lt;&lt; ssNode3.str();</div>
<div class="line"><a name="l00613"></a><span class="lineno">  613</span>&#160;        }</div>
<div class="line"><a name="l00614"></a><span class="lineno">  614</span>&#160;        <span class="keywordflow">if</span> (pCurr-&gt;left_node) {</div>
<div class="line"><a name="l00615"></a><span class="lineno">  615</span>&#160;            <a class="code" href="class_a_v_l_tree.html#a77a559c5902727a852b1d311794a5240">outputInvertedNode_</a>(fsOut, pCurr-&gt;left_node);</div>
<div class="line"><a name="l00616"></a><span class="lineno">  616</span>&#160;        }</div>
<div class="line"><a name="l00617"></a><span class="lineno">  617</span>&#160;        <span class="keywordflow">if</span> (pCurr-&gt;right_node) {</div>
<div class="line"><a name="l00618"></a><span class="lineno">  618</span>&#160;            <a class="code" href="class_a_v_l_tree.html#a77a559c5902727a852b1d311794a5240">outputInvertedNode_</a>(fsOut, pCurr-&gt;right_node);</div>
<div class="line"><a name="l00619"></a><span class="lineno">  619</span>&#160;        }</div>
<div class="line"><a name="l00620"></a><span class="lineno">  620</span>&#160;        <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00621"></a><span class="lineno">  621</span>&#160;    }</div>
<div class="line"><a name="l00622"></a><span class="lineno">  622</span>&#160;</div>
<div class="line"><a name="l00623"></a><span class="lineno">  623</span>&#160;</div>
<div class="line"><a name="l00624"></a><span class="lineno">  624</span>&#160;</div>
<div class="line"><a name="l00625"></a><span class="lineno">  625</span>&#160;};</div>
<div class="line"><a name="l00626"></a><span class="lineno">  626</span>&#160;<span class="preprocessor">#endif</span></div>
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